Title :
A multioctave bandwidth rat-race singly balanced mixer
Author :
Chang, Chi-Yang ; Yang, Chu-Chen ; Niu, Dow-Chih
Author_Institution :
Inst. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
fDate :
1/1/1999 12:00:00 AM
Abstract :
In this letter, we describe a broad-band 7.5-46 GHz rat-race ring singly balanced mixer. The rat-race ring consists of an ideal crossover phase inverter and is designed to have a Chebyshev response of order two. The mixer diodes are virtually grounded via a quarter-wavelength low-impedance FCPW (finite ground plane CPW) open circuit stubs. The mixer shows more than 5 times RF bandwidth and dc to 5 GHz IF bandwidth. The circuit is realized using FCPW on 25 mil Al2O3 substrate
Keywords :
microwave mixers; 7.5 to 46 GHz; Al2O3; Al2O3 substrate; Chebyshev response; IF bandwidth; RF bandwidth; broadband rat-race ring; crossover phase inverter; diode; finite ground plane CPW open circuit stub; singly balanced mixer; Bandwidth; Chebyshev approximation; Circuit synthesis; Coplanar waveguides; Coupling circuits; Diodes; Frequency; H infinity control; Impedance; Inverters;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
